added cpu usage to statline

makefile now has configurable options

dwm-stat/Makefile

@@ -1,11 +1,19 @@
+# Here are the configuraable options 
+# LAPTOP 	: enable batter level
+# CPU_USAGE : CPU usage in percentage
+# DEBUG 	: for fixing issues
+
+# NOTE: the -D is needed for gcc
+# MFLAGS= -D MY_OPTION -D ANOTHER_OPT ...
+MFLAGS=-D LAPTOP -D CPU_USAGE
+
+
 flags=-O2 -s -lX11
 output=statline
-stat:
-	gcc -o $(output) status.c $(flags)
 
-laptop:
-	# compiling with LAPTOP=1
-	gcc -D LAPTOP=1 status.c -o $(output) $(flags)
+
+stat:
+	gcc $(MFLAGS) -o $(output) status.c $(flags)
 
 run:
 	./statline